So, I was at the book shop yesterday flipping through the Jan '07 issue of 4 Wheel & Sport Utility mag...
A guy from TX shoe horned a 5.7l Hemi V8 mated to a 45RFE auto trans into his '04 Jeep Rubicon. He kept the Jeep T-case & had to fab new motor mounts of course. It looked like it fit nicely.

If one can stuff that in a Jeep, made me wonder what could be done to juice up the VX...